How to help your child with math: a research-backed guide

The help that works at home is small and repeatable: short practice spread across the week, old skills mixed with new, answers recalled from memory, one worked example before your child tries alone, feedback on the exact step that went wrong, and an adult who stays calm.

12 minute read · Updated October 9, 2026

You may recognise this: it is 7pm, the worksheet has twelve questions, your child is stuck on the third, and the way you were taught is "not how we do it". You explain, they sigh, you explain again a little louder. Twenty minutes later the sheet is done, mostly in your handwriting, and nobody feels good about it.

What actually helps a child with math at home?

A handful of habits have support in the guidance and studies behind this page: keeping practice short, spreading it over several days, mixing old skills with new ones, asking your child to recall answers instead of rereading them, showing one worked example and then taking help away, and correcting the specific step that went wrong while staying calm yourself.

What is a parent's job at the kitchen table?

A parent's job at the kitchen table is to make sure the work happens and to notice where it goes wrong, not to reteach the lesson. Jason Zimba, a lead writer of the US Common Core math standards, told Education Week the most important rule is making sure homework gets done, and that math instruction by parents "should be low".

There is a reason to hold back. One review of 448 studies found that parents' general involvement in schooling had small positive links with how children did, while help with homework specifically had a small negative link with achievement. That review is correlational: children who struggle get more help, so it cannot show that helping causes lower results. But more help is not automatically better help. Your part is to set the table, keep the time, ask good questions and write an honest note to the teacher.

How long should math practice at home be?

Math practice at home should be short enough to end before your child is worn out. No study gives a number of minutes for home practice, so anything you read is a suggestion, including ours: about ten minutes for a younger child and fifteen for an older one, on most days, is a sensible place to start.

Two reference points: a US federal practice guide for children who struggle with math recommends fluency activities that are brief, usually 1 to 5 minutes. And for all homework in every subject together, the researcher Harris Cooper describes a rule of thumb of 10 minutes per grade per night, which he puts at 40 minutes for a fourth grader.

What to do tonight: set a kitchen timer for the session, not for each question, and stop when it rings even if the page is not finished. More on this in how much math practice a day.

Why spread practice across the week?

Spreading practice across the week works better than one long session because memory holds what it meets again after a gap. One review of 317 experiments found that practice spaced over time beat the same practice done in one block, and that the best gap grows with how long the material needs to be remembered.

Those experiments were on recalling words and facts, not arithmetic. One study that did use math, with college students, found that practice spaced across sessions gave higher scores a week later than the same practice in one sitting.

What to do tonight: take the forty-minute Sunday session and cut it in four. Ten minutes on Monday, Tuesday, Thursday and Saturday is the same total. It will feel less thorough, because some of Monday has faded by Thursday. Bringing it back is the practice.

Should practice stay on one topic or be mixed?

Practice should include a mix of old and new material, not only this week's topic. A US federal practice guide on helping students who struggle with math recommends "systematic review of content by including a mix of previously and newly learned material within and across lessons". A page of one kind of question lets a child stop choosing the method.

On a test, "what kind of question is this?" is the first thing to decide. One classroom trial with 7th graders found that students given mostly mixed practice did better on a surprise test a month later than students given one topic at a time. That was older children, so take it as a pointer, not a promise for a 7 year old.

What to do tonight: before the homework, ask three quick questions from earlier in the year: an old times table, a subtraction, a sum with carrying. Careless mistake or real gap? shows how to read what you find.

Why ask the question instead of showing the answer?

Asking a question and waiting makes a child pull the answer out of memory, and pulling it out is what strengthens it. One small classroom study of 48 second graders found that recalling multiplication facts from flashcards built more fluency, both soon after and a week later, than chanting the same facts aloud.

This is why a child can chant the 7 times table in order and still freeze on 7 × 8 asked cold. Chanting practices the chant. England's schools inspectorate, Ofsted, puts it this way in its research review: pupils who cannot recall math facts quickly "struggle with calculations due to their working memory being overloaded".

Understanding still comes first. The Education Endowment Foundation's guidance for Key Stages 2 and 3 says pupils apply procedures best "when they understand how the procedures work". So show why 7 × 8 is 56, with 7 × 4 doubled, and then practice recalling it.

What to do tonight: pick five facts. Ask each one out of order, count silently to five, and only then give the answer if it has not come. Put the missed ones back in and ask them again before you finish. See why times tables don't stick.

How do I explain a method without doing the homework?

Explain a method by working one example fully while your child watches, then giving a second example with a step left out for them to supply. A US federal practice guide recommends exactly this: use worked-out examples, "then exclude steps in a worked-out example and ask students to provide those steps" until they are comfortable.

Say each step as you write it, using the school's words (borrowing, regrouping and exchanging all mean the same thing):

   4 12
   5  2
 - 2  7
 ------
   2  5

Now write 74 - 38 and do the borrowing yourself, crossing out the 7 and writing 6, with 14 in the ones. Stop. Your child finishes: 14 - 8 = 6, then 6 - 3 = 3, so 36. On the next one, they do the borrowing too. On the one after, you say nothing.

Use easy numbers when the method is new. The same federal guide advises single-digit or easy-to-process numbers for a new procedure. Save 4,000 - 1,267 for when 52 - 27 is boring.

What should I say when the answer is wrong?

When an answer is wrong, point to the step, not to the child, and ask them to find it. The Education Endowment Foundation's guidance says feedback should be "specific and clear", should encourage further effort, and should be given sparingly. "Be more careful" is none of those. "Look at the ones column again" is all three.

Suppose your child writes 50 - 27 = 37. That is not a random slip. They took the smaller digit from the larger in each column, 7 - 0 and 5 - 2, whichever row it was in. The same guidance calls a pattern like this a misconception, and says misconceptions should be "uncovered and addressed rather than side-stepped or ignored". Correcting the answer to 23 fixes tonight. Finding the pattern fixes next week.

A US federal practice guide adds the timing: give feedback straight away, and frame questions so that children can identify for themselves where their thinking went wrong. Words that do this:

• "Talk me through the ones column." (Then wait. Children often catch it mid-sentence.)
• "Which number are we taking away from? Can you take 7 from 0?"
• "Good, you found it. Now tell me why the new answer is right."

The slips that come up most in column work are set out in carrying and borrowing mistakes.

Does my own mood about math matter?

Your mood about math can matter, mainly at the homework table. One study of 438 first and second graders found that children of math-anxious parents learned less math over the year and grew more anxious about it themselves, but only when those parents helped with math homework often. The parents' anxiety had no link with the children's reading.

That is not a reason to stay away. If math makes you tense, lean on routines that do not depend on your explaining: asking facts from cards, checking answers against a key, timing the session. Leave the teaching to the worked example and to the teacher.

What to do tonight: never say "I was bad at math too", and never sigh at a wrong answer. If you feel your voice tighten, say "let's stop there and do the last two after dinner". If your child's own worry about math seems large or lasting, read math anxiety in children and talk to the teacher.

Should I time my child?

Timing is contested. A US federal practice guide recommends brief timed activities on content already learned, with the child trying to beat their own last score. Others argue that timed tests bring on anxiety, though the few experiments testing this have not shown it. So: no clock on anything new, and none for a child who freezes.

What does not help?

The things that do not help are mostly the things that feel most like helping: long sessions, doing the hard steps yourself, erasing every mistake before the teacher sees it, and comments about your child instead of the work. Each one makes tonight's page look better and tells you less about what your child can do alone.

• Chanting tables in order. It practices the song, not the single fact.
• "You're so smart" and "I was never good at this either." Both are about the person. Talk about the step.
• A page with no mistakes that you corrected. The teacher then plans tomorrow for a child who does not exist.

How do I check homework without doing it?

Check homework by marking how many answers are wrong, not which ones, and letting your child hunt for them. Help with one step at most on any question they cannot fix, and leave a short note for the teacher about what was hard. The page should show what your child can do, not what you can.

If homework regularly ends in tears, see how to end math homework fights.

When should I ask the school for more help?

Ask the school when steady, calm practice over several weeks is not moving things, or when math is costing your child more distress than the work explains. These are reasons to talk to the teacher, and sometimes a pediatrician. They are not a diagnosis of anything, and no app or article can give one.

• Facts practiced often are still gone a few days later, month after month.
• Your child is well behind the list for their grade while reading is fine.
• The same question gets a different wrong answer each time it is tried.
• Stomach aches, tears or refusal that appear around math and not around other subjects.

Where does Plusy fit?

Plusy is a math practice app for children 6 to 12, and we built it around the habits on this page. It covers addition, subtraction, times tables and division with whole numbers, and fractions up to mixed numbers, in short rounds. Every road, world and game is free, and it is practice beside school, not a replacement for a teacher.

• Missed ones come back. A question answered wrong returns once later in the same round. See wrong answers.
• One step at a time. On a column question, Hint asks a guiding question first. Show me fills in that one step and explains it, then hands the question back. It never solves the whole question in one go. See hints and steps.
• The specific slip. When a column answer is wrong, Plusy names what happened in your child's own working, for example "You forgot to add the carried 1".
• Timing by choice. Rounds and tests are not timed. The Speed run is 60 seconds on facts from worlds your child has already passed.

It runs in a browser on a phone, tablet or computer, with nothing to install. Start free.

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